I have method to call from OnCreated_.How to call two string in one time.

Question

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Dir_1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            FileSystemWatcher watcher = new FileSystemWatcher(@"c:\\")
            {
                NotifyFilter = NotifyFilters.Attributes
                | NotifyFilters.DirectoryName
                | NotifyFilters.FileName
                | NotifyFilters.LastWrite
                | NotifyFilters.Size,
                Filter = "*.*",  // Monitor all file types
                IncludeSubdirectories = true,
                EnableRaisingEvents = true
            };
            watcher.Created += OnCreated_;

        }

        void OnCreated_(object sender, FileSystemEventArgs e)
        {


            try
            {
                // How to call getFiles.
            }
            catch (Exception exception)
            {
                Debug.WriteLine(exception.Message);
            }
        }
        void getFiles(string directory)
        {
            string[] files = Directory.GetFiles(directory);
            string[] directories = Directory.GetDirectories(directory);

            foreach (string file in files)
            {
                getFiles(file);
                listBox1.Invoke((Action)(() => listBox1.Items.Add(file)));
                File.Delete(file);
            }

            foreach (string subDirectory in directories)
            {
                // Call the same method on each directory.
                getFiles(subDirectory);
                listBox2.Invoke((Action)(() => listBox2.Items.Add(subDirectory)));
                File.Delete(subDirectory);
            }


        }

    }
}

Answer 1

Hi @MIPAKTEH_1 , Welcome to Microsoft Q&A,

You need to adjust your logic to ensure that you get the path to the file or directory from the FileSystemWatcher and pass it as a parameter to the getFiles method.

This is a one-time effect that occurs when you create a new file in the target folder.

void OnCreated_(object sender, FileSystemEventArgs e)
{
    try
    {
        // e.FullPath is the full path of the created file or directory
        string createdPath = e.FullPath;

        if (Directory.Exists(createdPath))
        {
            // If it is a directory
            getFiles(createdPath);
        }
        else if (File.Exists(createdPath))
        {
            // If it is a file, get the directory
            string directory = Path.GetDirectoryName(createdPath);
            getFiles(directory);
        }
    }
    catch (Exception exception)
    {
        Debug.WriteLine($"Error: {exception.Message}");
    }
}

// Recursively traverse the directory and update the ListBox
void getFiles(string directory)
{
    try
    {
        // Get files and subdirectories in the directory
        string[] files = Directory.GetFiles(directory);
        string[] directories = Directory.GetDirectories(directory);

        // Process files
        foreach (string file in files)
        {
            listBox1.Invoke((Action)(() => listBox1.Items.Add(file))); // Update ListBox
        }

        // Process subdirectories
        foreach (string subDirectory in directories)
        {
            listBox2.Invoke((Action)(() => listBox2.Items.Add(subDirectory))); // Update ListBox
            getFiles(subDirectory); // Recursive call
        }
    }
    catch (UnauthorizedAccessException)
    {
        Debug.WriteLine($"Access denied to: {directory}");
    }
    catch (Exception ex)
    {
        Debug.WriteLine($"Error processing directory: {directory}, {ex.Message}");
    }
}

Best Regards,

Jiale

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